Color

#3de67e

#3de67e
hex#3de67e
rgbrgb(61, 230, 126)
hslhsl(143, 77%, 57%)
oklchoklch(0.817 0.198 151.4)
Closest name: Grotesque Green (#64e986)Relative luminance 0.5909

Colors that go with #3de67e

Deep Sky Blue, Royal Blue and Taupe lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#e63da5

#51e63d · #3de6d2

#7e3de6 · #e67e3d

Split-complementary

Open in tool →

#d23de6 · #e63d51

#3d51e6 · #e63da5 · #e6d23d

Contrast

#3de67e as textRatioAAAA largeAAAFix
Aaon white
1.64:1failfailfail
  • AA: use #12873f as the text (4.6:1)
  • AAA: use #0d632e as the text (7.39:1)
  • AA: or shift the background to #545454 (4.62:1)
  • AAA: or shift the background to #383838 (7.16:1)
Aaon black
12.82:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3de67e as the background.

Brands using this color

mcpConnect your agent — build around #3de67e
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3de67e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3de67e-a2beb0-c859d4-1f2d2b-eaf1e9?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md